When I finished writing The Mosaic Key, I thought I knew exactly where Ethan Cole and Clara Vialli’s story would go next.
I was wrong.
One of the surprises of writing a series is that characters often reveal themselves gradually. By the time I reached the final pages of The Mosaic Key, I realized there were still many unanswered questions—not only about the mysteries surrounding the Archive, but also about Ethan, Clara, and the forces shaping their future.
That realization became the foundation for my second novel, The Glass Archive.
While The Mosaic Key explored hidden symbols, forgotten histories, and secrets buried beneath the surface, The Glass Archive asks a more dangerous question:
What happens when knowledge itself becomes the prize?
Without giving away too much, the new novel expands the world introduced in The Mosaic Key. Readers will travel beyond the locations of the first book and encounter new mysteries, new adversaries, and discoveries that challenge everything Ethan and Clara thought they understood.
One of the most enjoyable parts of writing the sequel has been exploring the history behind the story. Like the first novel, The Glass Archive draws inspiration from real places, historical events, and fascinating questions that continue to intrigue historians and researchers today.
The challenge is finding the balance between fact and fiction.
How much is real?
How much is invented?
I’ll leave that for readers to discover.
Perhaps the biggest lesson I’ve learned while writing a sequel is that readers care most about the characters. At recent book signings, one of the questions I hear most often is:
“Will there be another Ethan and Clara adventure?”
The answer is yes.
In fact, The Glass Archive is only the next step in a much larger journey.
As I continue writing, I’m grateful to everyone who has picked up The Mosaic Key, attended a signing, visited my website, or sent a message of encouragement. Every reader helps make the next chapter possible.
I’ll continue sharing updates as The Glass Archive progresses.
Until then, thank you for joining me on the adventure.
— Archer Campbell
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